安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
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- GPT‑5 is here - OpenAI
GPT‑5 excels at writing, research, analysis, coding, and problem-solving It delivers more accurate, professional responses and feels like collaborating with a smart, thoughtful colleague
- Introducing ChatGPT - OpenAI
We’ve trained a model called ChatGPT which interacts in a conversational way The dialogue format makes it possible for ChatGPT to answer followup questions, admit its mistakes, challenge incorrect premises, and reject inappropriate requests
- OpenAI Platform
Build on the OpenAI API Platform Sign up or login with an OpenAI account to build with the OpenAI API
- Tokenizer - OpenAI API
A helpful rule of thumb is that one token generally corresponds to ~4 characters of text for common English text This translates to roughly ¾ of a word (so 100 tokens ~= 75 words) If you need a programmatic interface for tokenizing text, check out our tiktoken package for Python For JavaScript, the community-supported @dbdq tiktoken package works with most GPT models
- CLI – Codex | OpenAI Developers
Codex CLI is OpenAI’s coding agent that you can run locally from your terminal It can read, change, and run code on your machine in the selected directory It’s open source and built in Rust for speed and efficiency ChatGPT Plus, Pro, Business, Edu, and Enterprise plans include Codex Learn more about what’s included
- Models - OpenAI API
Models Choosing a model If you're not sure where to start, use GPT-5 5, our flagship model for complex reasoning and coding If you're optimizing for latency and cost, choose a smaller variant like GPT-5 4 mini or GPT-5 4 nano All latest OpenAI models support text and image input, text output, multilingual capabilities, and vision
- ChatGPT — Release Notes - OpenAI Help Center
GPT-5 2 Instant is a fast yet powerful workhorse for everyday work and learning, with clear improvements in info-seeking questions, how-tos and walk-throughs, technical writing, and translation, all while retaining the warmer, more conversational tone introduced in GPT-5 1 Instant
- Projects in ChatGPT - OpenAI Help Center
Projects are smart workspaces that keep everything related to a long‑running effort in one place Group together chats, upload reference files, and add custom instructions so ChatGPT remembers what matters and stays on‑topic With memory, context, and flexible tools, they’re ideal for repeated and evolving work such as writing, research, planning, and more Projects are available to all
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